Quantum computing stocks collapsed in the early part of January, thanks in part to comments from the CEO of Nvidia. The companies have promising technology, but it is still many years away from commercialization.

Rigetti (RGTI) is dropping 23%, while IonQ (IONQ) is giving back 10% and D-Wave Quantum (QBTS), which disclosed today that it may sell more shares of its stock, is plunging nearly 30%. The sector is dropping sharply again after Meta (META) CEO Mark Zuckerberg suggested that quantum computing would not be “practical” for a long time.

D-Wave is a strong buy in the quantum computing market, with a first-mover advantage and promising revenue forecasts. Read more on QBTS stock here.

The drop in stocks came after Nvidia CEO Jensen Huang's Q&A with analysts at CES in Las Vegas. When answering a question about the future of quantum computing, he said the timeline may be between 15 and 30 years until there is "very useful" quantum computers. This is the relevant quote from Huang:

As with any Discovery Stock, investors are looking to the price and the potential of the stock, not the fundamentals. As it stands now, IonQ has the benefit of round numbered support from the $30 price. Shares recently saw support at $40 on their ascent and then resistance at $50, displaying the effect of round-numbered prices.

Quantum-computing stocks tumbled Monday following comments from Meta Platforms CEO Mark Zuckerberg that quantum is far from from being a “practical paradigm.” Shares of D-Wave Quantum and Rigetti Computing fell 23% and 16%,

Quantum computing stocks experienced sharp losses Monday, later stabilizing slightly in aftermarket trade, as industry leaders raised doubts about the technologys near-term potential. Shares of Quantum Computing

Quantum computing stocks are plunging again after another major tech leader cast doubts on the technology’s usefulness in the near future.